Can anyone help with giving me what I need to reload the 7.92 x 57 J. I have been told the 8mm mauser dies will work but I need to use the .303 sizing tool from there Im lost. I know I have the .318 barrel. I have a custom loading guy here in town I just need data and the dies and bullets of coarse ant help would be appreciated. Regards Bill

A friend said I love guns too much, I said we can't be friends anymore.

Most use a .32 cal bullet been lookin for a mold to make my own .318 cast bullets but no luck so far this won't work in your case but might help someone else if you get milsurp 8mm remove bullet and take %20 of charge out then reseat bullet. This thread could help a lot of us out with ammo supplies

Forgot to add you need to buy bullets with a gas check or ones that can have a gas check added americal71 used 42 grains of 4064 with 200 grain bullets in his Gew88 range report with your barrel at .318 you need at least a .319 bullet which is why the .32 should be fine just remember the heavier the bullet the pressure will be higher so no hot loads with heavy bullets please for safety sake

When I slugged the barrel it actually is more like .312, that is about what the barrel should be and shoots the .318 bullet from what I gather so that being said I wonder if bullets from a 7.62 round will work they mic out to .314 I believe and are around 120 grains. May not be very accurate at long distance but should not over pressure the old gal. I did run one through the barrel it seems to engage the rifling decently but does not take too much force.

A friend said I love guns too much, I said we can't be friends anymore.

I would use a .320 cast bullet the Gew88's were made with three different bore sizes during their production with the .323 being last the Gew88 had bores .311 with a .3215 bullet the U.S. 8mm ammo should be fine because they use undersized bullets

Found a guy not too far from me has everything as far a sizing dies and bullets that will work. He test loaded 2 rounds for me one fired one did not. I may have read somewhere that some of the new primers are harder and don't always work anyone have any idea on that?

A friend said I love guns too much, I said we can't be friends anymore.

orbill wrote:Found a guy not too far from me has everything as far a sizing dies and bullets that will work. He test loaded 2 rounds for me one fired one did not. I may have read somewhere that some of the new primers are harder and don't always work anyone have any idea on that?

Could be a bad primer but if you have any further problems with it change the spring for a new/different one Please keep us posted with your results